Expose browser-apikey via environment variable

Add `--browser-apikey` to `supervisord.conf`, reading its value from the `OTR_BROWSERAPIKEY` environment variable.

Author: suhlig

run.sh

@@ -8,4 +8,5 @@ docker run -v /tmp/o2:/owntracks -p 11883:1883 -p 18883:8883 -p 8083:8083 \
 	-e MQTTHOSTNAME="${cthostname}" \
 	-e IPLIST="192.168.1.1 127.0.0.83 192.168.1.82" \
 	-e HOSTLIST="foo.example.com bar.org.example.com ${cthostname}" \
+	-e OTR_BROWSERAPIKEY="replace-me" \
 	owntracks/recorderd

supervisord.conf

@@ -20,7 +20,7 @@ auto_start=true
 autorestart=true
 
 [program:recorder]
-command=/usr/sbin/ot-recorder --http-host 0.0.0.0 'owntracks/#'
+command=/usr/sbin/ot-recorder --http-host 0.0.0.0 --browser-apikey %(ENV_OTR_BROWSERAPIKEY)s 'owntracks/#'
 redirect_stderr=true
 stdout_logfile=/dev/stdout
 stdout_logfile_maxbytes=0